I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
stereoed steroid steered stared stroud stored street hysteroid stirred starred sutured strette storied stretto stearate sturdy stretti stretta satyrid seatrout strut sturt start strait strata strati stride strode
stere stereo stare steer store storey strew aster asteria ester